Wimmer Racing has released an upgrade package for the C63 which takes the M156 V8 to 601 horsepower. They achieve this figure through a head and cam package. In addition, they modify the headers, intake, and the rest of the exhaust along with a tune. This is a pretty expensive package and there are no dynos or performance numbers to support the claims.

Sounds like a huge waste of money then. 601 crank HP? Just run yourself over to Craig at RPM and get the Tune + MHP header package for $6500 installed. That package has to be close to 600 crank HP. Even if its not, you would still have $20,000 USD left to get it done. Gotta be rwhp...

Sounds like a huge waste of money then. 601 crank HP? Just run yourself over to Craig at RPM and get the Tune + MHP header package for $6500 installed. That package has to be close to 600 crank HP. Even if its not, you would still have $20,000 USD left to get it done. Gotta be rwhp...

You can be over 600 crank HP by getting Craigs MHP headers and tune + getting the akra titanium exhaust and renntech carbon airbox. That should leave you with $13000 to spend on tires and gas! lol

Sounds like a huge waste of money then. 601 crank HP? Just run yourself over to Craig at RPM and get the Tune + MHP header package for $6500 installed. That package has to be close to 600 crank HP. Even if its not, you would still have $20,000 USD left to get it done. Gotta be rwhp...

It's listed as crank and yes, there are much better options available for less money.

The MHP package produces roughly 480 to 600 hp at the crank. However, it is more important to note that the package does not only produce high horsepower numbers on the dyno, it has actually shown very impressive performance on the track - many different tracks by many different customers. So the power gains are very consistent across the C-Class line and is very repeatable.

The MHP package produces roughly 480 to 600 hp at the crank. However, it is more important to note that the package does not only produce high horsepower numbers on the dyno, it has actually shown very impressive performance on the track - many different tracks by many different customers. So the power gains are very consistent across the C-Class line and is very repeatable.

Very true. Unfortunately with this package, there are no dyno numbers and there are no track times.

Unfortunately, European tuners tend to just put out press releases like this with nothing to support it claiming large crank figures. This is yet another reason why I believe many US tuners are better as they support their claims with real world performance numbers, like on the strip.

^ they don't don't publish dynos because they don't need it . but in U.S it's different , no one believes you untill you show something to support your claiming !
it's kind of a dirty race between every tuner in U.S from smallest tuners to the biggest .
i was amazed when i said my car put XXX number on dyno in a forum which was full of U.S members , everyone called me a lier since i didn't have the graph but i've never seen something like this when i was in Europe.

they don't don't publish dynos because they don't need it . but in U.S it's different , no one believes you untill you show something to support your claiming !

That is how it should be. European tuners claim whatever numbers they want. Even G-power makes bold claims and doesn't support them. I e-mailed them a long time ago to ask who verified or how they came to their top speed record only to be continually delayed and eventually they just dropped it.

Originally Posted by Sorena

it's kind of a dirty race between every tuner in U.S from smallest tuners to the biggest .

No, it's proper competition. Europeans seem to be more into brand names (Hamann, Brabus, Ruf, etc.) and Americans are more into real performance.

Originally Posted by Sorena

i was amazed when i said my car put XXX number on dyno in a forum which was full of U.S members , everyone called me a lier since i didn't have the graph but i've never seen something like this when i was in Europe.

Well usually if you get a dyno you have a graph. If you don't have a graph to go with the claim, it should be dismissed.

Well usually if you get a dyno you have a graph. If you don't have a graph to go with the claim, it should be dismissed.

well things are a bit different here , when someone says my car has this much HP on wheels most people believe him ! because why would he lie about ? it's not a big deal !
i'm one of the dirtiest persons you can meet when it comes to business ,which i'm not proud of but that's must be done for living, but i just don't understand why would i lie about my car WHP ?! or 1/4 mile time ?
or worse , calling another person as a lier just because he doesn't have a graph ?
seconds are flying away but people instead of getting better , they get worse !

well things are a bit different here , when someone says my car has this much HP on wheels most people believe him ! because why would he lie about ? it's not a big deal !
i'm one of the dirtiest persons you can meet when it comes to business ,which i'm not proud of but that's must be done for living, but i just don't understand why would i lie about my car WHP ?! or 1/4 mile time ?
or worse , calling another person as a lier just because he doesn't have a graph ?
seconds are flying away but people instead of getting better , they get worse !

Well I don't believe people just because they say something. I have this strange thing I do called thinking which leads to skepticism and analyzation.

People lie about dynos and such on the internet, happens all the time. The fact remains, showing a graph removes the skepticism and proves what one is saying.

well things are a bit different here , when someone says my car has this much HP on wheels most people believe him ! because why would he lie about ? it's not a big deal !
i'm one of the dirtiest persons you can meet when it comes to business ,which i'm not proud of but that's must be done for living, but i just don't understand why would i lie about my car WHP ?! or 1/4 mile time ?
or worse , calling another person as a lier just because he doesn't have a graph ?
seconds are flying away but people instead of getting better , they get worse !

I dont see how you can be a dirty business man on one hand but take someones word on something when it comes to doing business on the other hand. Your either a terrible business man or your full of it.

Dont make a claim if you dont have the data to back it up. How can they say they are pushing 601 crank HP if they didnt dyno it? Someone just looked at it and said.. yeah... 600 should sell a lot of these packages. Or they DID dyno it and only they can see the dyno graph. Everyone else must take their word on it? LOL.. Silly Euro's.

I dont see how you can be a dirty business man on one hand but take someones word on something when it comes to doing business on the other hand. Your either a terrible business man or your full of it.

Dont make a claim if you dont have the data to back it up. How can they say they are pushing 601 crank HP if they didnt dyno it? Someone just looked at it and said.. yeah... 600 should sell a lot of these packages. Or they DID dyno it and only they can see the dyno graph. Everyone else must take their word on it? LOL.. Silly Euro's.

different cultures , different opinions .
i don't take a punk's word , but when someone nice comes and claim something like dyno HP , it's not that important for me to ask him dyno graph ....
and i'm not a terrible business man , started to both working and studying when i was 17 and after 10 years i have almost anything i want except a god damn passport

well things are a bit different here , when someone says my car has this much HP on wheels most people believe him ! because why would he lie about ? it's not a big deal !
i'm one of the dirtiest persons you can meet when it comes to business ,which i'm not proud of but that's must be done for living, but i just don't understand why would i lie about my car WHP ?! or 1/4 mile time ?
or worse , calling another person as a lier just because he doesn't have a graph ?
seconds are flying away but people instead of getting better , they get worse !

It's the same reason why people exagerate on their dick size. They do it because it makes them feel good about being better than the next guy. If a tuner states that he has 601 horsepower, then he better back it up with dyno charts or slips.

It's the same reason why people exagerate on their dick size. They do it because it makes them feel good about being better than the next guy. If a tuner states that he has 601 horsepower, then he better back it up with dyno charts or slips.

different cultures , different opinions .
i don't take a punk's word , but when someone nice comes and claim something like dyno HP , it's not that important for me to ask him dyno graph ....
and i'm not a terrible business man , started to both working and studying when i was 17 and after 10 years i have almost anything i want except a god damn passport

That is true. I cant take it to another level to find some common ground with you. When Mercedes releases a car and says "It comes stock with 451HP" no one asks for a dyno graph. The buyers just take their word on it. So I hear ya. Its a matter of whos selling in some cases.

That is true. I cant take it to another level to find some common ground with you. When Mercedes releases a car and says "It comes stock with 451HP" no one asks for a dyno graph. The buyers just take their word on it. So I hear ya. Its a matter of whos selling in some cases.

I think we can take Mercedes at their word.

It's a little different when Mercedes claims 451 horsepower and Randomforumdouche claims 800 whp because his cousin tuned his car and added a new air filter.